Valve-releasing device.



R. L. MAPSON. VALVE RELEASING DEVICE. APPLICATION men MAR. 20. I916.

Patented, Apr. 10, 191?.

R516? L. Mai wow.

A War/72y ing compressed. l 'ig.

ROBERT L. MAPSON, OF SAN DIEGO, CALIFORNIA, ASSIGNOR OF ONE-HALF T0 LORENZO SPERBECK, OF LA MESA, CALIFORNIA.

VALV 1E-RELEASING DEVICE.

Specification of Letters Patent.

Patented Apr. to, 191?.

Application filed March 20, 3.916. Serial No. 85,268.

To all wiwm is? may concern.

Be it known that I, Bonner L. MAPsoN, a citizen of the United States, residing at San Diego. in the county of San Diego and State of California. have invented certain new and useful Improvements in Valve-Releasing' ating the same are up in. a position readily.

accessible to the operator and out of the way of the various parts usually adjacent the valves; second. to provide a device of this class in which the moving valve engaging parts move and opc'ate in alinement, thus minimizing the liability to'bend the valve stem in rch ismg and removing the same; third, to provide a. device of this class which may belockcd, thus hol ding the spring in vari ous compressed positions as desired and lea ving the o 'ierator the use of his hands for removing the washer. hey or nut on the bottom of the valve stem; fourth, to provide a device of this class in which the lower engaging member is adjustable for dillcrent sized valve stcn'is and may be secured onto the valve washer so there is no danger of its slipping off. and fifth, to provide a device oi this class which is simple and economical of con- .iruction. durable, easily operated and will not readilv get out of order.

lv'ith these and other objects in view as will appear hereinafter my invention consis 'l-i of certain novel features of construction. combination and arrangement of parts as will be hereina'lter described in detail and particularly set forth in the appended ch in s. retcrence being had to the accom- Pill. lu drawings and to-thc characters of nee thereon. which form a part oi? this specification. in which:

Figure 1 is a side clevational view of my device complete showing by solid. lines its position in connection with a valve with the spring compressed ready for the removal of the washer, pin or nut and. showing by (lotted lines the positi n of a portion of the device when the spring is extemled before be- 2 is a fragmentary top view ot the alve stem and valve washer engaging portion of the device, and Fig. 3 is a fragmentary side elevational view of my device shown on the opposite side to that of Fig. 1.

Similar characters of reference refer to similar parts throughout the views.

The support 1, links 2. operating lever 3, locking lever 4 and lower end engaging member 5 constitute the principal parts of my valve releasing device.

The support 1 ispreferably a fiat metallic bar provided with a pointed lower end 1 which is adapted to fit into the usual center-punch hole in the top of the valve. On its upper end is mounted a handlel". Some distance from the lower end-is pivotally mounted thereon two linksQ one on each side thereof. Some distance above this pivotal mounting is pivotally mounted thereon a handle 3 and on theopposite side a link 3 Pivotally mounted between this operating lever 3 and the handle 1 is the locking lever i shaped as shown best in Fig. 1 of the drawing which is provided with a plurality of teeth 4: which engage a rigid dog 3 mounted between the hand lever and link 3 said teeth are inclined in one direction sothat they engage with said dog in one direction but slide over the same when moved in the opposite direction. Connecting the lever 4: with the support 1 is a ten sion spring l" tending to hold the teeth in engagement with the dog 3". The upper end otsaid lever 4 is provided with a finger hold which .is adapted to be operated by the small finger ot' the hand of the operator holding the handle 1*. The hand lever 3 extends normally in a horizontal position a short distance and is there bent upwardly at 3 and on its upper end is provided a handle 3. Pivotally mounted between the hand lever 3 and the link 3 near the bend in the handle 3 is the upper end of the lower end engagingmember 5 and said member 5 is also pivotally mounted between the extended ends of the two links 2. The inwardly extending end of the member 5 is bifurcated and preterably tempered so as to provide suihcient inherent spring. It is provided with a screw 5 adapted to spring it together for adjusting it todlflerent 'sfiiflwashcrs. It is provided with a circular shapdd extended end 5mm with recesses fi 'adapted to allow the valve washer to fit thereinand the screw 5 is turned inwardly. clamps onto the This extended end washer, thus preventing its slipping.

Though I have shown and described a particular construction, combination and arrangement of parts, I do not wish to be limited to this particular construction, combination and arrangement but desire to include in the purview of my. invention, the construction, combination and arrangement of parts substantially as set forth in the appended claims.

It is obvious that with this construction there is provided a'valve releasing and removing device in which the operating parts are up out of the way of the various parts usually adjacent the valves and are readily accessible to the operator, that the device may be locked holding the spring in certain compressed positions as desired and the device will be supported in the position as shown in Fig. 1 of the drawings and the V operators hand will be free to remove the washer, key or nut on the bottom'of the valve stem after which by pressure on the finger hold 4" of the lever, the handle 3 will be moved downwardly in the position shown by dotted lines and the device re moved after which the valve may be removed from its position, that the bifurcated portion controlled by the screw 5 provides for adjustment for different sized washers on the valve stem, that the device is simple and economical of construction, durable, easily operated and will not readily get out of order.

Having thus described'my invention what claim as new and desire to secure by Letters Patent, is:

1. In a device of the class described, the combination of a, stationary or supporting member adapted to fit the top end of a valve stem, a handle on the upper end for supporting it in a normally vertical position,

link members pivotally mounted thereon and spaced apart from each other, a mo'vable member spaced apart from said stationary member and pivotally mounted between' sa'id links in their spaced relation and means for moving said movable member upwardly and downwardly relatively to said stationary member.

2. In a device of the class described, the combination of a stationary or supporting member adapted to fit the top end of a valve stem, a handle on the upper end for supporting it in a normally vertical position, link members pivotally mounted thereon and spaced apart from each other, a movable member spaced apart from said stationary member and pivotally mounted between said links in their spaced relation and means for moving said movable member upwardly and downwardly relatively to said stationary member and means for locking said movable member in certain relative position to said stationary member.

In a device of the class described, the combination of a stationary or supporting member adapted to fit the top end of a valve stem, a handle on the upper end for supporting it in a normally vertical position, link members pivotally mounted thereon and spaced apart from each other, a movable member spaced apart from said stationary member and pivotally mounted between said links in their spaced relation provided with adjustable means for fitting different sized washers and means for moving said movable member upwardly and downwardly relatively to said stationary member and means for locking said movable member in certain relative position to said stationary member.

In testimony whereof, I set my hand at San Diego, 13th day of March, 1916. g

ROBERT L. MAPSON,

have hereunto California, thls 

